\subsection{InvalidAtackException}
\begin{lstlisting}
Exception subclass: #InvalidAtackException
	instanceVariableNames: 'description'
	classVariableNames: ''
	poolDictionaries: ''
	category: 'PLP-TP-POO'
\end{lstlisting}

\subsubsection{Mensajes de Clase}
\textbf{description:} \textit{aDescription}
\begin{lstlisting}
	^self new initializeDescription: aDescription 
\end{lstlisting}

\bigskip

\textbf{signalDescription:} \textit{aDescription}
\begin{lstlisting}
	(self description: nDescription) signal  
\end{lstlisting}


\subsubsection{Mensajes de Instancia}
\textbf{description}
\begin{lstlisting}
	^description
\end{lstlisting}

\bigskip

\textbf{initializeDescription:} \textit{aDescription}
\begin{lstlisting}
	description := aDescription
\end{lstlisting}
